Who has been buying RNTX stock?

2 distinct insiders have filed 2 disclosed insider purchases in RNTX (123010), most recently on 2026-05-28. Each filer, their role, the number of shares and the price at filing are listed in the table on this page.

How many insider filings does RNTX have?

RNTX has 2 buy-side and 2 sell-side disclosures on record, covering ₩207M ($144K) in total reported value, spanning 2024-09-20 to 2026-05-28.

Do insider buys in Korean stocks predict returns?

Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean regulatory filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

RNTX 123010

Company

알엔티엑스RNTX

Insiders

Buys

Total Value

₩207M ($144K)

Avg Return

+14.35%

Last Filing

2026-05-28

RNTX (123010) has 2 disclosed insider purchases and 2 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩207M ($144K) in reported transaction value. The earliest filing StockDrifts holds for RNTX is dated 2024-09-20; the most recent is 2026-05-28. Across these filings the average return since disclosure is +14.35%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent insider trades

Date	Type	Source	Insider	Position	Shares	Price at filing	Return	Value
2026-07-29	SELL	기타	위드윈투자조합91호 Withwin Investment Association No. 91	-	-93.1K	₩2,440	+5.3%	₩227M ($158K)
2026-07-08	SELL	주식병합	위드윈투자조합91호 Withwin Investment Association No. 91	-	-2.0M	₩3,110	+25.7%	₩6.3B ($4.4M)
2026-05-28	BUY	장외매수	위드윈투자조합91호 Withwin Investment Association No. 91	-	4.1M	₩2,780	-11.9%	₩11.3B ($7.8M)
2026-01-27	SELL	Market Sell	알엔투테크놀로지 RN2 Technology	-	-50.0K	₩1,148	+0.3%	₩57M ($40K)
2026-01-23	SELL	장외매도	아이윈 iwin	-	-9.2M	₩1,310	+12.6%	₩12.1B ($8.4M)
2026-01-23	SELL	Market Sell	알엔투테크놀로지 RN2 Technology	-	-37.0K	₩1,310	+12.6%	₩48M ($34K)
2026-01-23	BUY	장외매수	알엔투테크놀로지 RN2 Technology	-	8.1M	₩1,310	-12.6%	₩10.6B ($7.3M)
2026-01-23	BUY	장외매수	알엔투테크놀로지 RN2 Technology	-	2.5M	₩1,310	-12.6%	₩3.3B ($2.3M)
2026-01-13	BUY	Market Buy	알엔투테크놀로지 RN2 Technology	-	87.0K	₩1,071	+6.9%	₩93M ($65K)
2025-03-28	SELL	임원퇴임	이준식 Junsik Lee	CEO	-35.0K	₩1,231	+7.0%	₩43M ($30K)
2024-09-20	BUY	Market Buy	이준식 Junsik Lee	CEO	10.0K	₩832	+37.6%	₩8M ($6K)

Frequently asked questions

Who has been buying RNTX stock?: 2 distinct insiders have filed 2 disclosed insider purchases in RNTX (123010), most recently on 2026-05-28. Each filer, their role, the number of shares and the price at filing are listed in the table on this page.
How many insider filings does RNTX have?: RNTX has 2 buy-side and 2 sell-side disclosures on record, covering ₩207M ($144K) in total reported value, spanning 2024-09-20 to 2026-05-28.
Do insider buys in Korean stocks predict returns?: Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean regulatory filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

More on this data

Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.